/* * Copyright (c) by Jaroslav Kysela * Creative Labs, Inc. * Routines for control of EMU10K1 chips * * BUGS: * -- * * TODO: * -- * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include #include #include #include unsigned int snd_emu10k1_ptr_read(struct snd_emu10k1 * emu, unsigned int reg, unsigned int chn) { unsigned long flags; unsigned int regptr, val; unsigned int mask; mask = emu->audigy ? A_PTR_ADDRESS_MASK : PTR_ADDRESS_MASK; regptr = ((reg << 16) & mask) | (chn & PTR_CHANNELNUM_MASK); if (reg & 0xff000000) { unsigned char size, offset; size = (reg >> 24) & 0x3f; offset = (reg >> 16) & 0x1f; mask = ((1 << size) - 1) << offset; spin_lock_irqsave(&emu->emu_lock, flags); outl(regptr, emu->port + PTR); val = inl(emu->port + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); return (val & mask) >> offset; } else { spin_lock_irqsave(&emu->emu_lock, flags); outl(regptr, emu->port + PTR); val = inl(emu->port + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); return val; } } void snd_emu10k1_ptr_write(struct snd_emu10k1 *emu, unsigned int reg, unsigned int chn, unsigned int data) { unsigned int regptr; unsigned long flags; unsigned int mask; mask = emu->audigy ? A_PTR_ADDRESS_MASK : PTR_ADDRESS_MASK; regptr = ((reg << 16) & mask) | (chn & PTR_CHANNELNUM_MASK); if (reg & 0xff000000) { unsigned char size, offset; size = (reg >> 24) & 0x3f; offset = (reg >> 16) & 0x1f; mask = ((1 << size) - 1) << offset; data = (data << offset) & mask; spin_lock_irqsave(&emu->emu_lock, flags); outl(regptr, emu->port + PTR); data |= inl(emu->port + DATA) & ~mask; outl(data, emu->port + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); } else { spin_lock_irqsave(&emu->emu_lock, flags); outl(regptr, emu->port + PTR); outl(data, emu->port + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); } } unsigned int snd_emu10k1_ptr20_read(struct snd_emu10k1 * emu, unsigned int reg, unsigned int chn) { unsigned long flags; unsigned int regptr, val; regptr = (reg << 16) | chn; spin_lock_irqsave(&emu->emu_lock, flags); outl(regptr, emu->port + 0x20 + PTR); val = inl(emu->port + 0x20 + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); return val; } void snd_emu10k1_ptr20_write(struct snd_emu10k1 *emu, unsigned int reg, unsigned int chn, unsigned int data) { unsigned int regptr; unsigned long flags; regptr = (reg << 16) | chn; spin_lock_irqsave(&emu->emu_lock, flags); outl(regptr, emu->port + 0x20 + PTR); outl(data, emu->port + 0x20 + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); } void snd_emu10k1_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb) { unsigned long flags; unsigned int enable; spin_lock_irqsave(&emu->emu_lock, flags); enable = inl(emu->port + INTE) | intrenb; outl(enable, emu->port + INTE); spin_unlock_irqrestore(&emu->emu_lock, flags); } void snd_emu10k1_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb) { unsigned long flags; unsigned int enable; spin_lock_irqsave(&emu->emu_lock, flags); enable = inl(emu->port + INTE) & ~intrenb; outl(enable, emu->port + INTE); spin_unlock_irqrestore(&emu->emu_lock, flags); } void snd_emu10k1_voice_intr_enable(struct snd_emu10k1 *emu, unsigned int voicenum) { unsigned long flags; unsigned int val; spin_lock_irqsave(&emu->emu_lock, flags); /* voice interrupt */ if (voicenum >= 32) { outl(CLIEH << 16, emu->port + PTR); val = inl(emu->port + DATA); val |= 1 << (voicenum - 32); } else { outl(CLIEL << 16, emu->port + PTR); val = inl(emu->port + DATA); val |= 1 << voicenum; } outl(val, emu->port + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); } void snd_emu10k1_voice_intr_disable(struct snd_emu10k1 *emu, unsigned int voicenum) { unsigned long flags; unsigned int val; spin_lock_irqsave(&emu->emu_lock, flags); /* voice interrupt */ if (voicenum >= 32) { outl(CLIEH << 16, emu->port + PTR); val = inl(emu->port + DATA); val &= ~(1 << (voicenum - 32)); } else { outl(CLIEL << 16, emu->port + PTR); val = inl(emu->port + DATA); val &= ~(1 << voicenum); } outl(val, emu->port + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); } void snd_emu10k1_voice_intr_ack(struct snd_emu10k1 *emu, unsigned int voicenum) { unsigned long flags; spin_lock_irqsave(&emu->emu_lock, flags); /* voice interrupt */ if (voicenum >= 32) { outl(CLIPH << 16, emu->port + PTR); voicenum = 1 << (voicenum - 32); } else { outl(CLIPL << 16, emu->port + PTR); voicenum = 1 << voicenum; } outl(voicenum, emu->port + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); } void snd_emu10k1_voice_half_loop_intr_enable(struct snd_emu10k1 *emu, unsigned int voicenum) { unsigned long flags; unsigned int val; spin_lock_irqsave(&emu->emu_lock, flags); /* voice interrupt */ if (voicenum >= 32) { outl(HLIEH << 16, emu->port + PTR); val = inl(emu->port + DATA); val |= 1 << (voicenum - 32); } else { outl(HLIEL << 16, emu->port + PTR); val = inl(emu->port + DATA); val |= 1 << voicenum; } outl(val, emu->port + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); } void snd_emu10k1_voice_half_loop_intr_disable(struct snd_emu10k1 *emu, unsigned int voicenum) { unsigned long flags; unsigned int val; spin_lock_irqsave(&emu->emu_lock, flags); /* voice interrupt */ if (voicenum >= 32) { outl(HLIEH << 16, emu->port + PTR); val = inl(emu->port + DATA); val &= ~(1 << (voicenum - 32)); } else { outl(HLIEL << 16, emu->port + PTR); val = inl(emu->port + DATA); val &= ~(1 << voicenum); } outl(val, emu->port + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); } void snd_emu10k1_voice_half_loop_intr_ack(struct snd_emu10k1 *emu, unsigned int voicenum) { unsigned long flags; spin_lock_irqsave(&emu->emu_lock, flags); /* voice interrupt */ if (voicenum >= 32) { outl(HLIPH << 16, emu->port + PTR); voicenum = 1 << (voicenum - 32); } else { outl(HLIPL << 16, emu->port + PTR); voicenum = 1 << voicenum; } outl(voicenum, emu->port + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); } void snd_emu10k1_voice_set_loop_stop(struct snd_emu10k1 *emu, unsigned int voicenum) { unsigned long flags; unsigned int sol; spin_lock_irqsave(&emu->emu_lock, flags); /* voice interrupt */ if (voicenum >= 32) { outl(SOLEH << 16, emu->port + PTR); sol = inl(emu->port + DATA); sol |= 1 << (voicenum - 32); } else { outl(SOLEL << 16, emu->port + PTR); sol = inl(emu->port + DATA); sol |= 1 << voicenum; } outl(sol, emu->port + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); } void snd_emu10k1_voice_clear_loop_stop(struct snd_emu10k1 *emu, unsigned int voicenum) { unsigned long flags; unsigned int sol; spin_lock_irqsave(&emu->emu_lock, flags); /* voice interrupt */ if (voicenum >= 32) { outl(SOLEH << 16, emu->port + PTR); sol = inl(emu->port + DATA); sol &= ~(1 << (voicenum - 32)); } else { outl(SOLEL << 16, emu->port + PTR); sol = inl(emu->port + DATA); sol &= ~(1 << voicenum); } outl(sol, emu->port + DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); } void snd_emu10k1_wait(struct snd_emu10k1 *emu, unsigned int wait) { volatile unsigned count; unsigned int newtime = 0, curtime; curtime = inl(emu->port + WC) >> 6; while (wait-- > 0) { count = 0; while (count++ < 16384) { newtime = inl(emu->port + WC) >> 6; if (newtime != curtime) break; } if (count >= 16384) break; curtime = newtime; } } unsigned short snd_emu10k1_ac97_read(struct snd_ac97 *ac97, unsigned short reg) { struct snd_emu10k1 *emu = ac97->private_data; unsigned long flags; unsigned short val; spin_lock_irqsave(&emu->emu_lock, flags); outb(reg, emu->port + AC97ADDRESS); val = inw(emu->port + AC97DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); return val; } void snd_emu10k1_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short data) { struct snd_emu10k1 *emu = ac97->private_data; unsigned long flags; spin_lock_irqsave(&emu->emu_lock, flags); outb(reg, emu->port + AC97ADDRESS); outw(data, emu->port + AC97DATA); spin_unlock_irqrestore(&emu->emu_lock, flags); } /* * convert rate to pitch */ unsigned int snd_emu10k1_rate_to_pitch(unsigned int rate) { static u32 logMagTable[128] = { 0x00000, 0x02dfc, 0x05b9e, 0x088e6, 0x0b5d6, 0x0e26f, 0x10eb3, 0x13aa2, 0x1663f, 0x1918a, 0x1bc84, 0x1e72e, 0x2118b, 0x23b9a, 0x2655d, 0x28ed5, 0x2b803, 0x2e0e8, 0x30985, 0x331db, 0x359eb, 0x381b6, 0x3a93d, 0x3d081, 0x3f782, 0x41e42, 0x444c1, 0x46b01, 0x49101, 0x4b6c4, 0x4dc49, 0x50191, 0x5269e, 0x54b6f, 0x57006, 0x59463, 0x5b888, 0x5dc74, 0x60029, 0x623a7, 0x646ee, 0x66a00, 0x68cdd, 0x6af86, 0x6d1fa, 0x6f43c, 0x7164b, 0x73829, 0x759d4, 0x77b4f, 0x79c9a, 0x7bdb5, 0x7dea1, 0x7ff5e, 0x81fed, 0x8404e, 0x86082, 0x88089, 0x8a064, 0x8c014, 0x8df98, 0x8fef1, 0x91e20, 0x93d26, 0x95c01, 0x97ab4, 0x9993e, 0x9b79f, 0x9d5d9, 0x9f3ec, 0xa11d8, 0xa2f9d, 0xa4d3c, 0xa6ab5, 0xa8808, 0xaa537, 0xac241, 0xadf26, 0xafbe7, 0xb1885, 0xb3500, 0xb5157, 0xb6d8c, 0xb899f, 0xba58f, 0xbc15e, 0xbdd0c, 0xbf899, 0xc1404, 0xc2f50, 0xc4a7b, 0xc6587, 0xc8073, 0xc9b3f, 0xcb5ed, 0xcd07c, 0xceaec, 0xd053f, 0xd1f73, 0xd398a, 0xd5384, 0xd6d60, 0xd8720, 0xda0c3, 0xdba4a, 0xdd3b4, 0xded03, 0xe0636, 0xe1f4e, 0xe384a, 0xe512c, 0xe69f3, 0xe829f, 0xe9b31, 0xeb3a9, 0xecc08, 0xee44c, 0xefc78, 0xf148a, 0xf2c83, 0xf4463, 0xf5c2a, 0xf73da, 0xf8b71, 0xfa2f0, 0xfba57, 0xfd1a7, 0xfe8df }; static char logSlopeTable[128] = { 0x5c, 0x5c, 0x5b, 0x5a, 0x5a, 0x59, 0x58, 0x58, 0x57, 0x56, 0x56, 0x55, 0x55, 0x54, 0x53, 0x53, 0x52, 0x52, 0x51, 0x51, 0x50, 0x50, 0x4f, 0x4f, 0x4e, 0x4d, 0x4d, 0x4d, 0x4c, 0x4c, 0x4b, 0x4b, 0x4a, 0x4a, 0x49, 0x49, 0x48, 0x48, 0x47, 0x47, 0x47, 0x46, 0x46, 0x45, 0x45, 0x45, 0x44, 0x44, 0x43, 0x43, 0x43, 0x42, 0x42, 0x42, 0x41, 0x41, 0x41, 0x40, 0x40, 0x40, 0x3f, 0x3f, 0x3f, 0x3e, 0x3e, 0x3e, 0x3d, 0x3d, 0x3d, 0x3c, 0x3c, 0x3c, 0x3b, 0x3b, 0x3b, 0x3b, 0x3a, 0x3a, 0x3a, 0x39, 0x39, 0x39, 0x39, 0x38, 0x38, 0x38, 0x38, 0x37, 0x37, 0x37, 0x37, 0x36, 0x36, 0x36, 0x36, 0x35, 0x35, 0x35, 0x35, 0x34, 0x34, 0x34, 0x34, 0x34, 0x33, 0x33, 0x33, 0x33, 0x32, 0x32, 0x32, 0x32, 0x32, 0x31, 0x31, 0x31, 0x31, 0x31, 0x30, 0x30, 0x30, 0x30, 0x30, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f }; int i; if (rate == 0) return 0; /* Bail out if no leading "1" */ rate *= 11185; /* Scale 48000 to 0x20002380 */ for (i = 31; i > 0; i--) { if (rate & 0x80000000) { /* Detect leading "1" */ return (((unsigned int) (i - 15) << 20) + logMagTable[0x7f & (rate >> 24)] + (0x7f & (rate >> 17)) * logSlopeTable[0x7f & (rate >> 24)]); } rate <<= 1; } return 0; /* Should never reach this point */ }